US9707868B2 - Child car seat having active protection means - Google Patents

Child car seat having active protection means Download PDF

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Publication number
US9707868B2
US9707868B2 US14/437,781 US201314437781A US9707868B2 US 9707868 B2 US9707868 B2 US 9707868B2 US 201314437781 A US201314437781 A US 201314437781A US 9707868 B2 US9707868 B2 US 9707868B2
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US
United States
Prior art keywords
child
car seat
seat
care device
vehicle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US14/437,781
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English (en)
Other versions
US20150291065A1 (en
US20170158095A9 (en
Inventor
Francois Renaudin
Nicolas Garnier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dorel Juvenile Group Inc
Original Assignee
Dorel Juvenile Group Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR1060856A external-priority patent/FR2969054A1/fr
Application filed by Dorel Juvenile Group Inc filed Critical Dorel Juvenile Group Inc
Priority to US14/437,781 priority Critical patent/US9707868B2/en
Assigned to DOREL JUVENILE GROUP, INC. reassignment DOREL JUVENILE GROUP, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DOREL FRANCE
Publication of US20150291065A1 publication Critical patent/US20150291065A1/en
Publication of US20170158095A9 publication Critical patent/US20170158095A9/en
Application granted granted Critical
Publication of US9707868B2 publication Critical patent/US9707868B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
    • B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
    • B60N2/2851—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle provided with head-rests
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
    • B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
    • B60N2/2884—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle with protection systems against abnormal g-forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/0244—Non-manual adjustments, e.g. with electrical operation with logic circuits
    • B60N2/0276—Non-manual adjustments, e.g. with electrical operation with logic circuits reaction to emergency situations, e.g. crash
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
    • B60N2/265—Adaptations for seat belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
    • B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
    • B60N2/2803—Adaptations for seat belts
    • B60N2/2812—Adaptations for seat belts for securing the child to the child seat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
    • B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
    • B60N2/2887—Fixation to a transversal anchorage bar, e.g. isofix
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
    • B60N2/427—Seats or parts thereof displaced during a crash
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
    • B60N2/427—Seats or parts thereof displaced during a crash
    • B60N2/42772—Seats or parts thereof displaced during a crash characterised by the triggering system
    • B60N2/42781—Seats or parts thereof displaced during a crash characterised by the triggering system mechanical triggering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents

Definitions

  • passive absorption elements are elements made from materials of the expanded polystyrene type (PSE), which can absorb all or a portion of the impact.
  • PSE expanded polystyrene type
  • These absorption elements are generally in direct or quasi-direct contact with a portion of the body of the child (for example the back, the shoulders, the head, etc.).
  • said detection means comprise electronic means, that implement at least one accelerometer.
  • said detection means take an adjustable triggering threshold into account.
  • This triggering threshold can thus be adjusted in particular according to at least one of the parameters belonging to the group comprising:
  • the car seat can comprise two airbags, housed on or in the shoulder straps of a harness or on or in sheaths mounted on said shoulder straps, and which can be made integral by connection means.
  • FIG. 2 diagrammatically shows the means for triggering the active protection means according to the invention
  • FIG. 3 diagrammatically shows a particular embodiment, that combines mechanical means and electronic means
  • the invention therefore relates to child car seats, provided with active protection means, consequently with means for triggering these active protection means in case of need (impact, accident, deceleration greater than a predetermined threshold, etc.).
  • these active protection means comprise two airbags 141 , 142 that can be made integral, such as shown in FIG. 1 , and described in detail by the aforementioned patent document FR2969055.
  • Trigger means 10 is provided to inflate airbags 141 , 142 as suggested in FIGS. 1 and 2 .
  • these two elements are further attached together, by attachment means provided for this purpose, at or in the vicinity of the straps.
  • attachment means are mounted on the inflatable elements, so that they remain attached, and held against each other when deployed.
  • each strap 121 and 122 has a sleeve 131 , 132 , taking position on the child's shoulders and/or upper body, to improve the child's comfort and safety.
  • These sleeves are generally adjustable in respect of the height thereof, by sliding along the corresponding strap, so as to be suitably positioned at the child's shoulder and chest, according to the child's size.
  • the inflatable safety elements may be incorporated directly into each strap.
  • These inflatable safety elements 141 and 142 are moreover connected by attaching means 15 (e.g. chest clip 15 ), attaching them together, when the child is installed in the seat.
  • attaching means 15 e.g. chest clip 15
  • the first series of signals has for purpose to prevent a triggering of the active protection means, even in the presence of an impact or of an accident, if it is not required, or dangerous.
  • the equipment producing the first signal comprises according to the invention at least one locking sensor of the car seat to the vehicle, with this sensor preferably being carried by the car seat.
  • the active protection means are not triggered, even if the car seat is correctly installed in the vehicle, if the latter is not transporting a child.
  • this detection can be provided by means for controlling 25 the locking of the harness of the child in the car seat, and for example of the correct securing of the chest clip 15 , connecting the two shoulder straps of the harness.
  • This approach is in particular interesting in the case of the seat of FIG. 1 , since this clip 15 must also be locked in order to ensure a correct deployment of the airbags.
  • Other presence sensors of the child 26 can be provided, as an alternative or as a supplement, for example using a weight sensor integrated into the seat portion of the car seat.
  • these detection means can be purely mechanical. This approach has the advantage of not requiring electrical power, which makes it possible to simplify the making of the car seat, and to prevent the risks due to the necessity of autonomous operation (which supposes the implementation of autonomous batteries, and the control of the sufficient charge of the latter, in order to generate an alert in the opposite case).
  • Such a mechanical system can in particular implement a preloaded spring, associated with a mobile inertia block, forming an inertial sensor.
  • a preloaded spring associated with a mobile inertia block, forming an inertial sensor.
  • the tension of the spring also exceeds a corresponding threshold, and a detection signal 22 is generated.
  • a disadvantage with this approach is that it does not allow for selective adjustment: a single preloading of the spring is possible. For safety reasons, the predetermined threshold is therefore limited, which increases the risk of an untimely triggering.
  • This triggering threshold can, where applicable, be adjusted, or variable, according to various parameters, such as the weight of the child (determined using a sensor placed in the seat portion, which can also be used as a presence sensor);
  • a child care device 5 includes a child holder 13 including child car seat 11 adapted to set on a passenger seat in a vehicle 100 and a child-restraint harness 12 associated with the child car seat 11 , as suggested in FIGS. 1 and 2 .
  • Child-restraint harness 12 is formed to include a first shoulder strap 121 and a second shoulder strap 122 arranged to lie alongside and in spaced-apart relation to the first shoulder strap to provide a neck-receiving space 120 therebetween through which the neck of a child extends when the child-restraint harness 12 is worn by a child seated on the child car seat 11 as suggested in FIG. 1 .
  • the device 5 includes an inflatable head-cushion system 141 , 142 coupled to the child-restraint harness 12 and configured to include a first inflatable element 141 linked to the first shoulder strap 121 and a second inflatable element 142 linked to the second shoulder strap 122 as suggested in FIG. 1 .
  • Each of the first and second inflatable elements 141 , 142 are activated to change from a compact storage shape to a relatively larger expanded use shape so as to cause each of the first and second inflatable elements 141 , 142 to deploy and cushion the head of a child seated on the child car seat 11 and restrained by the child-restraint harness 12 .
  • Inflation means 10 is provided for activating the first and second inflatable elements 141 , 142 to assume the relatively larger expanded use shapes in response to generation of both of a first signal 211 , 212 , 213 associated with establishment of a predetermined car seat condition of one of the child car seat 11 and the child-restraint harness 121 , 122 , 15 and a second signal 22 associated with detection of exposure of the child car seat to an external force in excess of a predetermined level so that each of the first and second inflatable elements 141 , 142 change shape to assume the relatively larger expanded use shape after the predetermined car seat condition is established and after exposure of the child car seat 11 to an external force in excess of the predetermined level is detected.
  • the inflation means 10 further includes child-presence sensor means 26 for sensing an external weight force applied to a seat portion 111 of the child car seat 11 to determine that a child is seated on the child car seat 11 to establish the predetermined car seat condition and generating the first signal 211 when the external weight force exceeds a predetermined level.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • General Health & Medical Sciences (AREA)
  • Seats For Vehicles (AREA)
  • Air Bags (AREA)
  • Passenger Equipment (AREA)
US14/437,781 2010-12-20 2013-10-25 Child car seat having active protection means Expired - Fee Related US9707868B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/437,781 US9707868B2 (en) 2010-12-20 2013-10-25 Child car seat having active protection means

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
FR1060856 2010-12-20
FR1060856A FR2969054A1 (fr) 2010-12-20 2010-12-20 Dispositif de puericulture comprenant des elements de securite gonflables.
FR1151522 2011-02-24
FR1151522A FR2969055B1 (fr) 2010-12-20 2011-02-24 Dispositif de puericulture comprenant des elements de securite gonflables
PCT/EP2011/073450 WO2012084983A1 (fr) 2010-12-20 2011-12-20 Dispositif de puericulture comprenant des elements de securite gonflables
FR1260272 2012-10-26
FR1260272A FR2997352B1 (fr) 2012-10-26 2012-10-26 Siege auto pour enfant a moyens de protection actifs
US201313995651A 2013-09-09 2013-09-09
PCT/EP2013/072421 WO2014064262A1 (fr) 2012-10-26 2013-10-25 Siège auto pour enfant à moyens de protection actifs
US14/437,781 US9707868B2 (en) 2010-12-20 2013-10-25 Child car seat having active protection means

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
US13/995,651 Continuation-In-Part US8851514B2 (en) 2010-12-20 2011-12-20 Childcare device including inflatable safety elements
PCT/EP2011/073450 Continuation-In-Part WO2012084983A1 (fr) 2010-12-20 2011-12-20 Dispositif de puericulture comprenant des elements de securite gonflables

Publications (3)

Publication Number Publication Date
US20150291065A1 US20150291065A1 (en) 2015-10-15
US20170158095A9 US20170158095A9 (en) 2017-06-08
US9707868B2 true US9707868B2 (en) 2017-07-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US14/437,781 Expired - Fee Related US9707868B2 (en) 2010-12-20 2013-10-25 Child car seat having active protection means

Country Status (12)

Country Link
US (1) US9707868B2 (ru)
EP (2) EP3138728B1 (ru)
JP (1) JP6293155B2 (ru)
CN (1) CN104755316B (ru)
AU (1) AU2013336586B2 (ru)
CA (1) CA2889497C (ru)
CL (1) CL2015000984A1 (ru)
EA (1) EA028498B1 (ru)
FR (1) FR2997352B1 (ru)
MX (1) MX357312B (ru)
NZ (1) NZ707183A (ru)
WO (1) WO2014064262A1 (ru)

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AU2013336586B2 (en) 2017-05-25
EP3138728B1 (fr) 2019-08-07
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CL2015000984A1 (es) 2015-12-28
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EA201500445A1 (ru) 2015-08-31
EP2911910A1 (fr) 2015-09-02
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CA2889497A1 (en) 2014-05-01
FR2997352B1 (fr) 2016-03-25
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CA2889497C (en) 2020-11-17
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US20170158095A9 (en) 2017-06-08
CN104755316B (zh) 2017-06-27

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